JP5317060B2 - A foam release pump mechanism and a pump-type product equipped with the foam release pump mechanism - Google Patents

Description

  The present invention relates to a foam in which an air mixing action part for foam generation is added to a pump core unit of an existing pump mechanism that does not have a foam generation function based on a mixing action of container contents and air during a discharge operation. The present invention relates to a discharge pump mechanism.

  That is, a foam comprising a stem, a suction valve, a discharge valve, a housing, an elastic body for biasing the stem, and a cylindrical holding portion (attached to the upper opening of the housing and holding the stem, the discharge valve, etc. in the housing) The present invention relates to a foam discharge pump mechanism in which a pump core unit which is a part of an existing pump mechanism without a generation function is used as it is as a component.

  Examples of liquid contents to be applied include soaps, disinfectants, cosmetics, emulsions, shaving foams, hair styling foams, detergents, hair dyes, shampoos, rinses, insecticides, and the like as described below.

  A foam release pump mechanism having a foam generation function for liquid contents contained in a pump container is disclosed, for example, in Patent Document 1 below.

This foam discharge pump mechanism having both a pump function and a foam generation function has at least the following components that can be said to be indispensable for the function itself.
(a) Suction valve for container contents
(b) Discharge valve for container contents
(c) A stem that has an internal passage through which the contents of the container flows in and is discharged to the external space by the valve action with the discharge valve, and is linked to the operation unit for discharging the contents
(d) A cylindrical content passage member that is integral with the stem and acts as a downstream passage and a bubble generating portion of the stem.
(e) Holding the stem / content passage member, the suction valve and the discharge valve in a movable manner, and storing the contents to be released next time between the stem, the discharge valve and the suction valve. Housing that defines the space
(f) Coil spring that biases the stem upward
(g) Air inflow passage formed in the peripheral surface portion of the content passage member
(h) The content passage member is pushed down during the content discharge operation, and is pushed up when the content discharge operation is released, and is disposed inside the housing so that the air inflow passage is opened during the content discharge operation. Air in / out valve set to open state
(i) Screw cap attached to the housing to unitize the entire foam discharge pump mechanism.
(j) Spout attached to contents passage member (content discharge operation part)

JP 2006-27636 A

  Among the components (a) to (h), which are directly related to the pump operation of this conventional foam discharge pump mechanism, (a) suction valve, (b) discharge valve, (c) stem, (f) The coil spring and the (g) content inflow tube can be said to be general-purpose components that can be used as they are for a normal pump mechanism without a bubble generating function.

  Of course, general-purpose components in the case of a pump mechanism that does not include a content inflow tube are the above-described (a), (b), (c), and (f) in which the tube is discarded.

  On the other hand, (d) the content passage member, (e) the housing, (g) the air inflow passage, and (h) the air inflow / outlet valve can be said to be components for mixing air to generate bubbles. Since the housing also acts as a seal portion for the air inflow / outlet valve, the housing is classified as the air mixing component.

  The present application focuses on the fact that the foam discharge pump mechanism thus has a pump general-purpose component for pump operation and an aeration component for foam generation.

  That is, the range of this pump general-purpose component is grasped by the component unit of the pump mechanism without the foam generation function without grasping as the set of each component unit in the aspect specialized for the foam discharging pump mechanism. It is.

  Specifically, a single housing for setting a content storage space area corresponding to a suction valve and a discharge valve and an air storage space area corresponding to an air inflow / outflow valve is conceptually a content storage space. The general-purpose housing is divided into two parts: a general-purpose housing that can be diverted to a pump mechanism that does not have a foam generation function and a foam generation housing that consists of a setting part for the air storage space. Be a member of an element.

  Then, by attaching the cylindrical holding portion to the general-purpose housing, the pump core unit in the form in which the stem, the suction valve, the discharge valve, the stem biasing elastic body and the like are held in the general-purpose housing as described above is obtained. It is generated as a constituent unit of the discharge pump mechanism.

  This pump core unit is equipped with the minimum components necessary for pump operation, such as a stem, an elastic body for biasing the stem (coil spring, etc.), a suction valve, a discharge valve, and a housing. It can be diverted to a normal pump mechanism without function.

  By attaching the pump core unit itself to a container body in a state of being set on a predetermined screw cap, a pump mechanism without a foam generating function is generated.

  As described above, the present invention provides a pump core unit that can directly convert components of the foam release pump mechanism into a pump mechanism without a foam generation function, and a foam generation operation section (air mixing operation section) added to the pump core unit. Based on the idea of discriminating in units such as.

  In other words, the pump core unit consisting of the components necessary for the pump operation of the foam release pump mechanism is set as a common platform that can be used as it is even in the case of an existing pump mechanism without a foam generation function. The purpose is to increase demand for the pump core unit itself, and to increase mass production and cost reduction.

The present invention solves the above problems as follows.
(1) A foam release pump mechanism in which an air mixing action part for foam generation is added to a pump core unit that does not have a foam generation function based on the mixing action of the container contents and air during the discharge operation,
As the pump core unit,
A stem (for example, an upper stem member 11 and a lower stem member 12 described later) having an internal passage (for example, upstream of a later-described content discharge passage B) during the discharge operation;
A suction valve (for example, a later-described suction valve 14) and a discharge valve (for example, a later-described discharge valve 13) for the container contents;
Each of the stem, the suction valve, and the discharge valve is held in a movable form, and a storage space area (for example, described later) between the stem, the discharge valve, and the suction valve A first housing (for example, a general-purpose housing 16 described later) that defines a content storage space area A);
An elastic member (e.g., coil spring 15 described later) disposed inside the first housing and biasing the stem upward;
The stem is attached to the upper opening of the first housing to prevent the stem from moving inside and the stem, the suction valve, the discharge valve, and the elastic member from falling off the housing. A cylindrical holder (for example, a cylindrical bush 17 described later);
Use what consists of
As the air mixing action part for foam generation,
A downstream content passage (for example, downstream of a content discharge passage B described later) attached to the stem and an outside air inflow passage (for example, a groove-shaped portion 22a described later) to the downstream content passage. , A lateral hole portion 21b), and a piston (for example, a lower stem extending member 21, an upper stem extending member 22 described later) interlocked with a content discharge operation unit (for example, a spout 28 described later),
A valve member (for example, an air inflow / outlet valve 23 to be described later) that sets the outside air inflow passage to an open state during a content discharge operation;
A second housing which is attached to the first housing and the container body (for example, a container body 25 described later) and defines an outside air storage space region (for example, an air storage space region C described later) with the valve member. A housing (for example, a foam generating housing 24 described later);
Use the one with.
(2) In (1) above,
As the valve member,
An annular member provided around the piston,
During the content discharge operation, first, the piston moves with respect to the valve member to change the outside air inflow passage from the closed state until then to the open state, and then the outside air storage space region by interlocking with the piston. Is a valve member that exhibits the action of flowing the air into the outside air inflow passage,
Use things.

  The present invention is directed to a foam discharge pump mechanism having the above-described configuration and a pump-type product including the foam discharge pump mechanism.

  As described above, the present invention is common in that the pump core unit composed of the minimum necessary components for the pump operation of the foam discharging pump mechanism can be used as it is for the existing pump mechanism without the foam generating function. Since it is positioned in the form of a platform, the demand for the pump core unit itself can be increased, and mass production and cost reduction can be achieved.

It is explanatory drawing which shows the stationary mode of the pump mechanism for foam discharge. It is explanatory drawing which shows the operation mode of the pump mechanism for foam discharge. It is explanatory drawing which shows the stem bottom dead center state following the operation mode of FIG. It is explanatory drawing which shows the content suction (suction) state at the time of returning to a stationary mode from the stem bottom dead center state of FIG. It is explanatory drawing (the 1) which shows the assembly operation procedure of the pump mechanism for foam discharge. It is explanatory drawing (the 2) which shows the assembly operation procedure of the pump mechanism for foam discharge.

  The form for implementing this invention is demonstrated using FIGS. 1-6.

  The components of the reference numbers with alphabets used in the above figures (for example, the longitudinal groove portion 11a) are in principle shown to be a part of the components of the numeral portions of the reference numbers (for example, the upper stem member 11). .

Regarding the pump core unit of FIGS.
11 is a cylindrical upper stem member fitted with a lower stem extending member 21 described later,
11a is a longitudinal groove-shaped portion for passage of contents formed in a fitting portion with the lower stem member 12 described later,
11b is an annular step portion that contacts an upper end portion of an upper inner reverse skirt portion 13b of a discharge valve 13 (to be described later) during a content discharge operation, and moves the discharge valve downward;
12 is a sheath-like lower stem member fitted to the upper stem member 11;
12a is a skirt portion that is formed on the lower end side and moves up and down while contacting an inner peripheral surface of a general-purpose housing 16 to be described later.
12b is a lower vertical groove-shaped portion for passage of contents formed on the outer peripheral surface on the lower end side of the skirt portion,
12c is an annular receiving portion as a valve seat of a discharge valve 13 (valve action portion 13a) described later,
12d is an upper longitudinal groove-shaped portion for passing contents formed on the outer peripheral surface immediately above the annular receiving portion,
13 is an annular discharge valve for the contents disposed between the upper stem member 11 and the lower stem member 12,
13a is a lower end side of the inner cylinder of the discharge valve, and a valve action part that opens and closes with the annular receiving part 12c of the lower stem member 12,
13b is a portion that continues upward from the valve action portion, and is an upper inner reverse skirt portion that moves up and down relatively while closely contacting the lower inner peripheral surface of the upper stem member 11.
13c is an upper and outer reverse skirt portion that moves in the vertical direction while being in close contact with the inner peripheral surface of a general-purpose housing 16 to be described later.
13d is a lower outer skirt portion that moves in the vertical direction while being in close contact with the inner peripheral surface of a general-purpose housing 16 to be described later.
14 is a suction valve (ball valve) for the contents,
15 is a coil spring that is disposed inside a later-described general-purpose housing 16 and urges the lower stem member 12 and the upper stem member 11 integral therewith upward.
Reference numeral 16 denotes an upper stem member 11, a lower stem member 12, a discharge valve 13, a suction valve 14, a coil spring 15, and the like, and a cylindrical shape that is attached to a container body when using a pump mechanism without a foam generating function. General-purpose housing,
16a is an annular valve seat for the suction valve 14,
16b is a lower cylindrical portion formed immediately upstream of the valve seat,
16c is formed on the substantially downstream side of the valve seat, holds the lower portion of the coil spring 15, and demarcates the bottom dead center position of a head portion (the upper stem member 11, the lower stem member 12, etc.) described later. Vertical rib-shaped part,
16d is a well-known side hole portion for inputting outside air that acts to prevent negative pressure inside the container body when the operation mode ends and returns to the stationary mode.
17 is a cylindrical bush attached to the upper opening of the general-purpose housing 16 and having a function of setting the upper limit position of the discharge valve 13;
18 is a dip tube for inflow of contents attached to the lower cylindrical portion 16b of the general-purpose housing 16.
A is a content storage space area set in a closed form between the discharge valve 13 (and the lower stem member 12) and the suction valve 14 inside the general-purpose housing 16 in the stationary mode.
Respectively.

  In the case of the pump-type product with the dip tube shown in the figure, the unit in which the components of the “upper stem member 11 to dip tube 18” are assembled is directly converted to the above-mentioned “pump mechanism without a bubble generation function”. It corresponds to a pump core unit that can

In addition, regarding the air mixing action part for foam generation,
21 is a cylindrical lower stem extending member fitted to the upper stem member 11,
21a has a function as a so-called valve seat of an air inflow / outlet valve 23 which will be described later, and in an operation mode, an annular receiving portion constituting an inlet portion of air flowing into the content passage immediately downstream of the upper stem member 11,
21b is a lateral hole portion for inflow of air into the content channel on the immediately downstream side,
22 is a cylindrical upper stem extending member fitted to the lower stem extending member 21;
22a is formed in the inner surface portion of the annular recess that fits with the lower stem extending member 21, and has a cross-sectional "U-shaped" groove-like portion for air inflow leading to the lateral hole portion 21b.
22b is an annular concave portion formed on the lower surface portion, which opens and closes with an air inlet / outlet valve 23 (annular convex portion 23e) described later,
23 is an annular air inflow / outlet valve for foam generation disposed between the lower stem extending member 21 and the upper stem extending member 22;
23a is a central cylindrical part in which an air passage region is set between the lower stem extending member 21 and the outer peripheral surface part,
23b is an annular valve action part which is formed on the lower end side of the central cylindrical part and exhibits an opening / closing action with the annular receiving part 21a of the lower stem extension member 21;
23c is an upper inner reverse skirt portion that is formed on the upper side of the central cylindrical portion and moves up and down relatively while closely contacting the lower inner peripheral surface of the upper stem extending member 22.
23d is a vertical hole for inflow of outside air,
23e is an annular convex portion that is formed on the outer upper surface of the vertical hole portion and opens and closes with the upper stem extending member 22 (annular concave portion 22b);
23f is an upper and outer reverse skirt portion that moves in the vertical direction while being in close contact with the inner peripheral surface of a foam generating housing 24, which will be described later.
23g is a lower outer skirt portion that moves in the vertical direction while being in close contact with the inner peripheral surface of a foam generating housing 24 described later.
24 fits and holds the general-purpose housing 16, accommodates the lower stem extending member 21, the air inflow / outflow valve 23, and the like, and is fitted into a screw cap 26 described later, so that the screw cap and the container body 25 A bottomed cylindrical foam generating housing sandwiched between
24a is a lateral hole for inflow of outside air,
24b is an annular flange formed on the outer peripheral surface of the upper end side,
25 is a container body in which various liquid contents to be released, which will be described later, are stored;
26 is a screw cap attached to the container body 25 in a threaded manner;
27 is an annular packing that provides a sealing action between the container body 25 and the screw cap 26;
28 is a spout (content discharge operation part) fitted to the upper stem extending member 22;
28a is a content passage,
29 is an upstream mesh member for foam generation provided at the upper end opening (contents outflow side opening) of the lower stem extending member 21;
30 is a downstream mesh member for foam generation provided at the upper end opening (contents outflow side opening) of the upper stem extending member 22;
31 is attached to the upper cylindrical part of the screw cap 26 in a detachable manner to prevent downward movement of the spout 28 (= movement to the operation mode). Well-known stopper member to avoid,
B is a content discharge passage composed of the internal spaces of the upper stem member 11, the lower stem extending member 21, the upper stem extending member 22 and the spout 28,
C is set between the air inflow / outflow valve 23 (and the lower stem extending member 21) and the cylindrical bush 17 in the stationary mode so as to communicate with the external space. Air storage space area,
Respectively.

  Here, the upper stem member 11, the lower stem member 12, the discharge valve 13, the general-purpose housing 16, the cylindrical bush 17, the dip tube 18, the lower stem extending member 21, the upper stem extending member 22, the air inflow / outlet valve 23, The foam generating housing 24, the container body 25, the screw cap 26, the spout 28, and the stopper member 31 are each made of plastic made of polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, or the like.

  The suction valve 14, the coil spring 15, the upstream mesh member 29, and the downstream mesh member 30 are made of metal or synthetic resin. The annular packing 27 is made of rubber or synthetic resin.

The basic features of the pump mechanism shown are
(11) A pump core unit that does not have a foam generation function
-Upper stem member 11 and lower stem member 12
・ Discharge valve 13 and suction valve 14
・ Coil spring 15
A general-purpose housing 16 for defining the content storage space A
A cylindrical bush 17 attached to the upper opening of the general-purpose housing 16
・ Dip tube 18
Consists of
(12) An aeration unit for foam generation added to the pump core unit is
The lower stem extending member 21 and the upper stem extending member 22 interlocked with the spout 28
・ Air in / out valve 23
A foam generating housing 24 which is attached to the general-purpose housing 16 and defines the air storage space B
Consists of
(13) And this pump core unit is also used as a unit for a pump mechanism without an existing foam generation function,
That is.

  By attaching an operation part (for example, spout) and a screw cap to the pump core unit of the above (11), a pump mechanism without a bubble generating function is generated.

  That is, this pump core unit has a pump mechanism without a bubble generating function in which an operation part and a screw cap are attached thereto, and an air mixing action part, an operation part, and a screw cap described in (12) above. It can be used for the foam release pump mechanism.

  In the stationary mode of FIG. 1, a head portion such as the spout 28 (the spout 28 and the upper stem extending member 22, the lower stem extending member 21, the upper stem member 11, and the lower stem member 12 integral with the spout 28) is connected to the coil spring 15. It moves upward due to the elastic action.

By the upward movement of this head part,
(21) The discharge valve 13 has its valve action portion 13a in close contact with the annular receiving portion 12c of the lower stem member 12,
(22) The air inflow / outflow valve 23 has an annular valve action portion 23b in close contact with the annular receiving portion 21a of the lower stem extending member 21, and an annular convex portion 23e extending from the annular concave portion 22b of the upper stem extending member 22. The upper outer reverse skirt portion 23f and the lower outer skirt portion 23g are set in a state of being separated and sealing the lateral hole portion 24a of the foam generating housing 24.

  Due to the action (21) of the discharge valve 13, the contents storage space A and the contents discharge composed of the internal spaces of the upper stem member 11, the lower stem extending member 21, the upper stem extending member 22 and the spout 28. The passage B is blocked.

  Further, the air storage space area C is blocked from the contents discharge passage B by the action (22) of the air inflow / outflow valve 23, and communicates with the external space area, and the interior of the container body 25 is external space. Is cut off from the area.

  That is, the contents storage space A in the closed space state stores the contents to be released, and communicates with the external space area and is blocked from the contents discharge passage B with bubbles in the air storage space area C. Production air is stored. It should be noted that the contents to be discharged and the storage processing of air are each performed at the time of returning the head portion to the stationary mode in response to the release of the immediately preceding operation mode setting operation, as shown in FIG.

  In addition, since the horizontal hole portion 24a of the foam generating housing 24 is sealed by the air inflow / outlet valve 23, even if the pump type product falls down, the container contents cannot leak from the horizontal hole portion to the outside. Absent.

  As shown in FIG. 2, when the user presses the spout 28, the stationary mode head (spout 28 and upper stem extending member 22, lower stem extending member 21, upper stem extending member 21, upper stem member 11, lower side When the stem member 12) is pushed down against the coil spring 15, the discharge valve 13 and the air inflow / outflow valve 23 transition to the discharge state (operation mode), respectively. Of course, the stopper member 30 needs to be removed from the screw cap 26 prior to the pressing operation.

  In this transition process (FIG. 2), the volume of the content storage space A decreases as the head portion moves downward, and the content pressure increases, so that the discharge valve 13 is connected to the lower stem member. 12 and the valve action portion 13a and the annular receiving portion 12c of the lower stem member so far change to the open state, and the suction valve 14 changes to the closed state. maintain.

  The discharge valve 13 that rises with respect to the lower stem member 12 has an upper end of the upper inner reverse skirt portion 13b abutting on the annular step portion 11b of the upper stem member 11, and thereafter with the head portion in the downward direction. Moving.

  As a result, the content in the content storage space A is “the lower longitudinal groove portion 12b of the lower stem member 12—the open portion between the annular receiving portion 12c and the valve action portion 13a—the lower stem member 12 The upper vertical groove-shaped portion 12d-the vertical groove-shaped portion 11a of the upper stem member 11-the content discharge passage B "is discharged into the external space area.

  On the other hand, in the air inflow / outflow valve 23, the ring convex portion 23e abuts on the ring concave portion 22b of the upper stem extending member 22 by the pressing operation of the spout 28, and the annular valve action portion 23b is lower stem extended. The state shifts to a state of being separated from the annular receiving portion 21a of the member 21. Then, the subsequent air inlet / outlet valve 23 moves downward together with the head portion.

  As the air inflow / outflow valve 23 moves in the downward direction, the volume of the air storage space C decreases, the air pressure there increases, and the upward force acting on the air inflow / outflow valve increases. Therefore, the separated state between the annular valve action portion 23b and the annular receiving portion 21a is maintained.

  And the air in the air storage space C is “the open portion between the annular valve action portion 23 b and the annular receiving portion 21 a -the central cylindrical portion 23 a of the air inflow / outflow valve 23 and the outer periphery of the lower stem extending member 21. It is sent to the content discharge passage B via the gap portion between the surface, the groove portion 22a of the upper stem extending member 22, and the lateral hole portion 21b of the lower stem extending member 21.

  Thus, the contents in the content storage space area A and the air in the air storage space area C flow into the content discharge passage B as the spout 28 is pressed.

  The contents and air that have flowed into the contents discharge passage B first become foamed when they are mixed, and the contents bubbles are subdivided by passing through the upstream mesh member 29 and the downstream mesh member 30, and are homogeneous. Turn into.

  In the operation mode of FIG. 2, a state in which the lateral hole portion 24a of the foam generating housing 24 communicates with the external space area by the downward movement of the air inflow / outflow valve 23, that is, the inside of the container body 25 communicates with the external space area. It is in the state. This communication state is continued in each mode of FIG. 3 (stem bottom dead center position) and FIG. 4 (contents suction / suction mode).

  The downward movement of the air inflow / outflow valve 23 increases the volume of the internal space region of the screw cap 26 above the air inflow / outflow valve and the upper stem extending member 22, so that the outside air is indicated by an arrow. Into the internal space.

  At this time, the space between the annular convex portion 23e of the air inflow / outlet valve 23 and the annular concave portion 22b of the upper stem extending member 22 is "closed", so that outside air flows into the air storage space C. There is no.

FIG. 3 shows the end stage of the operating mode of FIG.
That is, the head portion (the spout 28 and the upper stem extending member 22, the lower stem extending member 21, the upper stem member 11, and the lower stem member 12 integral with the spout 28) has moved to the lowest point.

  The lower stem member 12 after the movement is in a state where the lower end portion thereof is held in contact with the upper end portion of the vertical rib-like portion 16c of the general-purpose housing 16.

In the operation mode end stage in FIG.
The positional relationship between the upper stem member 11, the lower stem member 12 and the suction valve 14 The positional relationship between the upper stem extending member 22, the lower stem extending member 21 and the air inflow / outlet valve 23 is as shown in FIG. The same. Further, the lateral hole portion 24a of the foam generating housing 24 is also in communication with the external space region as in FIG.

  FIG. 4 shows a return state to the stationary mode that occurs when the user releases the pressing operation of the spout 28.

  When the pressing operation of the spout 28 is released, the head portion (the upper stem extending member 22, the lower stem extending member 21, the upper stem member 11, the lower stem member 12) is moved upward by the elastic action of the coil spring 15. Move to.

As the head moves up,
(31) The previously opened state of the annular receiving portion 12c of the lower stem member 12 and the valve action portion 13a of the discharge valve 13 changes to a closed state,
(32) The previously opened state of the annular receiving portion 21a of the lower stem extending member 21 and the annular valve action portion 23b of the air inflow / outflow valve 23 changes to a closed state,
(33) The closed state of the annular concave portion 22b of the upper stem extending member 22 and the annular convex portion 23e of the air inflow / outlet valve 23 changes to an open state.

As the head part further moves up after changing these (31), (32), (33), as is well known,
(41) Since the volume of the content storage space area A increases and becomes negative with respect to the inside of the container main body 25, the suction valve 14 rises and separates from the valve seat 16a. As a result, the container main body 25 The contents of the flow into the content storage space A from the separated portion as shown by the arrow in the figure,
(42) In order to prevent negative pressure inside the container body 25 due to the inflow of the contents, outside air flows into the container body from the lateral hole portion 24a of the foam generating housing 24 as shown by the arrows in the figure. ,
(43) In addition, since the volume of the air storage space area C increases and becomes negative pressure with respect to the external space area, the outside air flows from the vertical hole portion 23d of the air inflow / outflow valve 23 as shown by the arrows in the drawing. It flows into the air storage space.

  As is well known, the inflow of contents into the content storage space area A and the outside air inflow into the container body 25 and the air storage space area C are completed, and the apparatus returns to the stationary mode of FIG. .

  The content inflow into the content storage space area A is terminated because the suction valve 14 receives the content pressure from the content storage space area A in the downward direction, the weight of the suction valve, and the suction valve. This is when the content pressure from the container main body 25 received by the upper portion 14 is balanced. At this time, the suction valve 14 falls and contacts the valve seat 16a.

  5 and 6 show the procedure for assembling the foam discharging pump mechanism.

The contents of the assembly work procedure are as follows, for example.
(51) A pump core unit comprising “upper stem member 11, lower stem member 12, discharge valve 13, suction valve 14, coil spring 15, general-purpose housing 16, cylindrical bush 17 and dip tube 18” is used for foam generation. The housing 24 is fitted and attached.
(52) The annular packing 27 is attached to the lower surface portion of the annular flange 24b of the foam generating housing 24.
(53) The lower stem of the foam generating unit comprising the air inflow / outflow valve 23, and the upper stem extending member 22 and the lower stem extending member 21 which are fitted so as to sandwich the air inflow / outlet valve. The extending member is fitted to the upper stem member 11 and attached.
(54) The screw cap 26 is fitted and attached to the foam generating housing 24.
(55) The spout 28 is fitted to the upper stem extending member 22 and attached.
(56) The stopper member 31 is attached to the upper cylindrical portion of the screw cap 26.

The contents of the assembly procedure of the pump core unit are as follows, for example.
(61) The suction valve 14 is set at the valve seat 16a portion of the general-purpose housing 16.
(62) Next, the coil spring 15 is set between the vertical rib portions 16 c of the general-purpose housing 16.
(63) Next, a stem unit comprising the discharge valve 13 and the upper stem member 11 and the lower stem member 12 fitted so as to sandwich the discharge valve is attached to the coil spring 15 of the general-purpose housing 16. Set in the form to put.
(64) Next, the cylindrical bush 17 is fitted into the opening of the general-purpose housing 16 and attached.
(65) The dip tube 18 is attached to the lower cylindrical portion 16b of the general-purpose housing 16.

Of course, the present invention is not limited to the above embodiments,
(71) The lower cylindrical portion 16b of the general-purpose housing 16 is set so that its lower end portion extends to the bottom surface portion of the container body 25, and the dip tube 18 is omitted.
(72) The foam generation housing 24 is formed in a housing shape in which a cylindrical portion below the lateral hole portion 16d of the general-purpose housing 16 is not provided.
(73) As the operation mode setting operation unit, a tilt type rotating member is used.
You may do it.

  Pump type products to which the present invention is applied include cleaning agents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatment agents, hair dyes, hair restorers, cosmetics, shaving foams, foods , Droplets (such as vitamins), pharmaceuticals, quasi drugs, paints, gardening agents, repellents (insecticides), cleaners, deodorants, laundry glue, urethane foam, fire extinguishers, adhesives, lubrication There are various uses such as agents.

  The contents stored in the container body can be in various forms such as liquid, cream, gel, etc. Examples of ingredients blended in the contents include powdered substances, oil components, alcohols, interfaces Activators, polymer compounds, active ingredients according to each application, water and the like.

  As the powder, metal salt powder, inorganic powder, resin powder, or the like is used. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, barium sulfate, cellulose, and a mixture thereof are used.

  As the oil component, silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid and the like are used.

  Examples of the alcohol include monovalent lower alcohols such as ethanol, monovalent higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol.

  Surfactants include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as lauryldimethylaminoacetic acid betaine, and cations such as alkyltrimethylammonium chloride. A surfactant is used.

  As the polymer compound, methyl cellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, carboxyvinyl polymer, or the like is used.

  Active ingredients according to each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, insect repellents such as Hillesroid and diethyltoluamide, antiperspirants such as zinc oxide, Softeners such as camphor and menthol, anti-asthma drugs such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resin and urethane, dyes such as paraphenylenediamine and aminophenol, dihydrogen phosphate Use a fire extinguishing agent such as ammonium or sodium bicarbonate.

  Further, other than the above-mentioned contents, suspending agents, ultraviolet absorbers, emulsifiers, humectants, antioxidants, sequestering agents, etc. can be used.

11: upper stem member 11a: longitudinal groove portion 11b: annular step portion 12: lower stem member 12a: skirt portion 12b: lower longitudinal groove portion 12c: annular receiving portion 12d: upper longitudinal groove portion 13: discharge valve 13a : Valve action part 13b: Upper inner reverse skirt part 13c: Upper outer reverse skirt part 13d: Lower outer skirt part 14: Suction valve (ball valve)
15: Coil spring 16: General-purpose housing 16a: Valve seat 16b: Lower cylindrical portion 16c: Vertical rib portion 16d: Horizontal hole portion 17: Cylindrical bush 18: Dip tube 21: Lower stem extending member 21a: Annular receiver Part 21b: Horizontal hole part 22: Upper stem extending member 22a: Cross section “U-shaped” groove part 22b: Ring-shaped concave part 23: Air inlet / outlet valve 23a: Central cylindrical part 23b: Annular valve action part 23c: Upper Inner reverse skirt portion 23d: vertical hole portion 23e: ring convex portion 23f: upper outer reverse skirt portion 23g: lower outer skirt portion 24: foam generating housing 24a: side hole portion 24b: flange portion 25: container body 26: screw Cap 27: annular packing 28: spout (content discharge operation part)
28a: Content passage 29: Upstream mesh member 30: Downstream mesh member 31: Stopper member A: Content storage space area B: Content discharge passage C: Air storage space area

Claims (3)

A pump mechanism for releasing bubbles in a mode in which an aeration unit for generating bubbles is added to a pump core unit that does not have a function of generating bubbles based on the mixing operation of the container contents and air during the discharging operation,
The pump core unit is
A stem having an internal passage for passing contents during the discharge operation;
A suction valve and a discharge valve for the container contents;
Each of the stem, the suction valve, and the discharge valve is held in a movable manner, and a storage space area for contents to be released next time is defined between the stem, the discharge valve, and the suction valve. 1 housing;
An elastic member disposed inside the first housing and biasing the stem upward;
The stem is attached to the upper opening of the first housing to prevent the stem from moving inside and the stem, the suction valve, the discharge valve, and the elastic member from falling off the housing. A cylindrical holder,
Consists of
The aeration action part for foam generation,
A piston attached to the stem, having a downstream content passage continuing from the internal passage and an outside air inflow passage to the downstream content passage, and interlocking with the content discharge operation section;
A valve member that sets the outside air inflow passage to an open state during a content discharge operation;
A second housing attached to the first housing and the container body side and defining an outside air storage space area with the valve member;
Consist of,
A foam discharge pump mechanism characterized by that. The valve member is
An annular member provided around the piston,
During the content discharge operation, first, the piston moves with respect to the valve member to change the outside air inflow passage from the closed state until then to the open state, and then the outside air storage space region by interlocking with the piston. Is a valve member that exhibits the action of flowing the air into the outside air inflow passage,
The foam discharge pump mechanism according to claim 1, wherein: A foam release pump mechanism according to claim 1 or claim 2 and containing a liquid content to be released.
This is a pump-type product.

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